MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c4b7dbf2dbd59126e3ffaa0fd5baf1800fb8a140005506e38025524f2f78cbc8. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry

Mirai

Vendor detections: 10

Intelligence 10 IOCs YARA 4 File information Comments

SHA256 hash:	c4b7dbf2dbd59126e3ffaa0fd5baf1800fb8a140005506e38025524f2f78cbc8
SHA3-384 hash:	6fa7be842bd8c3efffa83c06816802dfc9db4b6afdb34f6915a2192b957a326554f506acffce25012520562bbc33761f
SHA1 hash:	1fbb66e78cc8ef3f3df9cf86f4c597da68fb4957
MD5 hash:	8b34eac3a040966ba2716a9e820dbbe0
humanhash:	twenty-oregon-undress-vermont
File name:	renji.x86_64
Download:	download sample
Signature	Mirai Create hunting rule
File size:	41'852 bytes
First seen:	2025-09-17 03:05:54 UTC
Last seen:	Never
File type:	elf
MIME type:	application/x-executable
ssdeep	768:By1MneCZUJF+1qsuY4Wf/Hi4wLuza9Kc51eQL9ZAEB3Ma9wdgV70x0Kx:BzUa1qxr8/C4w2qNX3hMEKPx
TLSH	T1E813F1B353A6BBBDCC29A0B44D4C528DF83B6A0A15C743BF14CF92B895BA54317176C1
TrID	50.1% (.) ELF Executable and Linkable format (Linux) (4022/12) 49.8% (.O) ELF Executable and Linkable format (generic) (4000/1)
Magika	elf
Reporter	abuse_ch
Tags:	elf mirai

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

Detection(s):

SecuriteInfo.com.Linux.Mirai-19.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Sends data to a server

Receives data from a server

Removes directories

Deleting a recently created file

Connection attempt

Kills processes

Runs as daemon

Removes directories from a temporary directory

Substitutes an application name

Verdict:

Unknown

Threat level:

2.5/10

Confidence:

100%

Tags:

packed upx

Link:

https://www.filescan.io/uploads/68ca25badbc6f5a29c48dd04/reports/fc363d87-b5d7-48cc-95f7-77c43b6bd495/overview

Verdict:

Malicious

Uses P2P?:

false

Uses anti-vm?:

false

Architecture:

x86

Packer:

UPX

Botnet:

unknown

Number of open files:

Number of processes launched:

Processes remaning?

false

Remote TCP ports scanned:

not identified

Full report:

https://elfdigest.com/brief/c4b7dbf2dbd59126e3ffaa0fd5baf1800fb8a140005506e38025524f2f78cbc8

Behaviour

no suspicious findings

Botnet C2s

TCP botnet C2(s):

not identified

UDP botnet C2(s):

not identified

Verdict:

Malicious

File Type:

elf.64.le

First seen:

2025-09-17T01:31:00Z UTC

Last seen:

2025-09-17T01:31:00Z UTC

Hits:

~10

Link:

https://opentip.kaspersky.com/c4b7dbf2dbd59126e3ffaa0fd5baf1800fb8a140005506e38025524f2f78cbc8/results?tab=lookup

Status:

Failed

Link:

https://sandbox.kunai.rocks/analysis/6fd574c1-3e01-4ba8-89bc-e7af9bcec351

Malware family:

Mirai

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/8228f5c8-de5f-4dec-9b2d-352f9315dbf2

Result

Threat name:

n/a

Detection:

malicious

Classification:

troj.evad

Score:

64 / 100

Link:

https://www.joesandbox.com/analysis/1778967

Signature

Deletes system log files

Malicious sample detected (through community Yara rule)

Manipulation of devices in /dev

Sample is packed with UPX

Sends malformed DNS queries

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

ELF

Link:

https://malprob.io/report/c4b7dbf2dbd59126e3ffaa0fd5baf1800fb8a140005506e38025524f2f78cbc8

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/c4b7dbf2dbd59126e3ffaa0fd5baf1800fb8a140005506e38025524f2f78cbc8/

Verdict:

Malicious

Threat:

Linux.Backdoor.Mirai

Link:

https://tip.neiki.dev/file/c4b7dbf2dbd59126e3ffaa0fd5baf1800fb8a140005506e38025524f2f78cbc8

Threat name:

Linux.Backdoor.Mirai

Status:

Malicious

First seen:

2025-09-17 03:06:35 UTC

File Type:

ELF64 Little (Exe)

AV detection:

17 of 38 (44.74%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=ys35x4w32wisny77vih5loxrqah3rikaabkqny4aevje6l3yzpea._file

Result

Malware family:

n/a

Score:

7/10

Tags:

defense_evasion discovery linux upx

Link:

https://tria.ge/reports/250917-dl2epaej8z/

Behaviour

Reads runtime system information

Changes its process name

Deletes log files

Enumerates running processes

Deletes Audit logs

Deletes journal logs

Deletes system logs

Verdict:

Unknown

Tags:

n/a

YARA:

n/a

Link:

https://app.threat.zone/submission/be6388dd-29b7-440c-8fed-a386dd559f31

Please note that we are no longer able to provide a coverage score for Virus Total.

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:	CP_AllMal_Detector Create hunting rule
Author:	DiegoAnalytics
Description:	CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication

Rule name:	linux_generic_ipv6_catcher Create hunting rule
Author:	@_lubiedo
Description:	ELF samples using IPv6 addresses

Rule name:	SUSP_ELF_LNX_UPX_Compressed_File Create hunting rule
Author:	Florian Roth (Nextron Systems)
Description:	Detects a suspicious ELF binary with UPX compression
Reference:	Internal Research